R Andrist,
F Kutzschebauch, PM Poloni - Proceedings of the American …, 2017 - ams.org
Gizatullin surfaces completed by a zigzag of type $[[0, 0,-r_2,-r_3]] $ can be described by the
equations $ yu= xP (x) $, $ xv= uQ (u) $ and $ yv= P (x) Q (u) $ in $\mathbb {C}^ 4_ {x, y, u …